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Parkinson's Disease causes constipation and gastric dysmotility that is severe enough to endanger comfort and even health. [26] A factor in this is the appearance of Lewy bodies and Lewy neurites even before these affect the functioning of the substantia nigra in the neurons in the enteric nervous system that control gut functions. [27]
Hypomimia (masked faces, masking of faces, mask-like facial expression), a medical sign, is a reduced degree of facial expression. It can be caused by motor impairment (for example, weakness or paralysis of the facial muscles ), as in Parkinson's disease , or by other causes, such as psychological or psychiatric factors (for example, if a ...
The demonstration of deficits in producing and understanding emotional information in modalities other than speech prosody (e.g. facial and gestural) in individuals with Parkinson's disease, as well as in individuals with other disorders affecting basal ganglia circuitry, are providing increasing evidence for an additional non-motorically based ...
The glabellar reflex, also known as the "glabellar tap sign", is a primitive reflex elicited by repetitive tapping of the glabella — the smooth part of the forehead above the nose and between the eyebrows. [1]
For some people with PD, masked facial expressions and difficulty moderating facial expressions of emotion or recognizing other people's facial expressions can impact social well-being. [264] As the condition progresses, tremor, other motor symptoms, difficulty communicating, or mobility issues may interfere with social engagement, causing ...
Parkinsonism is a clinical syndrome characterized by the four motor symptoms found in Parkinson's disease: tremor, bradykinesia (slowed movements), rigidity, and postural instability. [ 1 ] [ 2 ] Parkinsonism gait problems can lead to falls and serious physical injuries.
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